1 Copyright (C) 2016 and later: Unicode, Inc. and others.
2 License & terms of use: http://www.unicode.org/copyright.html
3 Copyright (C) 2000-2003, International Business Machines
4 Corporation and others. All Rights Reserved.
5 ICU is packaged into a number of small, interdependent packages. This
6 file describes what these packages are, what their name should be
7 like, and what their contents are. It is useful as a reference and a
8 guide when packaging ICU on a new system.
10 + List of ICU packages.
12 ICU is distributed as the following packages:
14 - ICU libraries. This package contains the runtime libraries needed by
15 applications that use ICU. All the other packages require this package
17 - ICU. This package contains the converters data, the timezones data,
18 and all the ICU tools.
19 - ICU locales. This package adds locales and break data.
20 - ICU development. This package contains the files necessary to build
21 applications that use ICU, i.e. header files, links to shared
22 libraries used by the linker, static libraries, etc... It also
23 contains sample applications and documentation.
24 - ICU docs. This package contains further documentation for ICU,
25 including a complete API reference.
26 - ICU data. This package contains the source for the compiled data
27 contained by the ICU package.
28 - ICU international data. This package contains the source for the
29 compiled data contained by the ICU locales package.
31 In this file, we will refer to Autoconf variables as in $(bindir). In
32 addition to these, we will use the following variables to denote
33 ICU-specific directories or information:
35 VERSION ICU's dotted version number, e.g. 1.6.0.1 as of this
38 ICUDATADIR The directory where portable ICU data are. This is
39 defined as $(datadir)/icu/$(VERSION).
40 ICULIBDIR The directory where platform-specific ICU data
41 are. This is defined as $(libdir)/icu/$(VERSION).
42 ICUSYSCONFDIR The directory where ICU configuration files are. This
43 is defined as $(sysconfdir)/icu.
45 When referring to libraries, .so will be used to denote the extension
46 of a shared library, and .a to denote the extension of a static
47 library. These extensions will actually be different on some platforms.
49 + Configuration and compilation of ICU
51 ICU should be configured with the following options:
53 --with-data-packaging=files
59 in addition to platform-specific settings (like a specific mandir or
60 sysconfdir). Note that the use of --disable-rpath assumes that the
61 packaging is made for a standard location, or that the package
62 installation/deinstallation will correctly manage the configuration
63 of the system's dyanmic loader. This is the right way of doing things.
65 The configure script invokation should also be done with
71 $ CFLAGS="-O2" ./configure ...
73 The files packaging mode is chosen because it offers the maximum
74 flexibility. Packages can be split easily, and system administrators
75 can add converters, aliases, and other resources with little
76 effort. Ideally, the ICU build will be modified to allow for distributing a
77 libicudata.so with all the converters and locales, but indexes and aliases
78 as separate files. But for now, this is the easiest way to get started.
80 + The ICU libraries package
82 The ICU libraries package is typically named `libicuXX' where XX is
83 the major number of ICU's libraries. This number is ICU's version
84 number multiplied by 10 and rounded down to the nearest integer (it is
85 also the value of the LIB_VERSION_MAJOR configure substitution
86 variable). For example, for ICU 1.6.0.1, it is 16, so the package name
87 is `libicu16'. The major version is part of the package name to allow
88 for the simultaneous installation of different ICU releases.
90 This package contains:
92 - All the shared libraries, and their major number symbolic link, but
93 not the .so symbolic link that is only used at link time (this one is
94 part of the development package). These are $(libdir)/libicu*.so.* and
95 $(libdir)/libustdio.so.* at the time of this writing.
99 The ICU package is simply named `icu'. It provides data used by the ICU
100 libraries package and commands to create and manipulate that data.
102 This package contains:
104 - The Unicode data files (uprops.dat and unames.dat as of this writing).
105 - The time zones data files (tz.dat).
106 - All the binary data files for converters (.cnv files).
107 - All the ICU commands.
108 - The manual pages for ICU commands and file formats.
110 + The ICU locales package
112 The ICU locales package is named `icu-locales'. It provides data used by
113 internationalization support in ICU.
115 This package contains:
117 - All the data for locales in ICU (.dat files).
118 - All the break data for specific locales (.brk files).
120 + The ICU development package
122 The ICU developpment package is named `libicu-dev'. It provides all
123 the files necessary to write applications that use ICU, along with
124 examples and some documentation.
126 This package contains:
128 - The /usr/include/unicode directory which contains all the ICU
130 - The .so symbolic links used by the linker to link against the
131 latest version of the libraries.
132 - A sample Makefile fragment that can be included by applications
133 using ICU, to faciliate their building, along with a platform-specific
134 configuration file included by this fragment.
135 - The sample applications from the ICU source tree, in an appropriate
136 location for the system that the package is installed on (for example,
137 on Debian, in /usr/share/doc/libicu-dev/examples).
139 This package depends on the ICU libraries package with the exact same
140 version, since it provides .so symbolic links to the latest libraries.
142 + The ICU docs package
144 The ICU docs package is named `libicu-doc'. It contains the files
145 generated by doxygen when the `make doc' command is executed, in a
146 location appropriate for the system that the package is installed on.
148 + The ICU data package
150 The ICU data package is named `icu-data'. It contains source files for
151 the data found in the ICU package. These files are installed in
154 + The ICU international data package
156 The ICU data package is named `icu-i18ndata'. It contains source files for
157 the dat founf in the ICU locales package. These files are installed in
161 Yves Arrouye <yves@realnames.com>